<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像 -->
      <div class="avatar_box">
        <img src="@/assets/logo.png" alt="" />
      </div>
      <!-- 登陆表单 -->
      <el-form :rules="loginFormRules" class="login_form" :model="loginForm" label-width="0px" ref="loginFromRef">
        <!-- 用户名  -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input type="password" v-model="loginForm.password" prefix-icon="el-icon-user"></el-input>
        </el-form-item>

        <!-- 按钮 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登陆</el-button>
          <el-button type="info" @click="resetLoginFrom">重置</el-button>
        </el-form-item>

      </el-form>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      //登陆数据绑定
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      //表单验证规则
      loginFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          //{ min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur', },
        ],
      },
    }
  },
  methods: {
    //重置表单
    resetLoginFrom() {
      //获取引用对象
      this.$refs.loginFromRef.resetFields()
    },
    login() {
      //表单验证 valid验证结果
      this.$refs.loginFromRef.validate(async (valid) => {
        if (!valid) return //验证失败
        //发起请求
        const { data: res } = await this.$http.post('login', this.loginForm)
        //   console.log(res)
        if (res.meta.status != 200) {
          //登陆失败
          return this.$message.error('登陆失败')
        }
        this.$message.success('登陆成功')
        //1.保存token到sessionStorage
        window.sessionStorage.setItem('token', res.data.token)
        //2.跳转路由
        this.$router.push('/home')
      })
    },
  },
}
</script>
<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
  .btns {
    display: flex;
    justify-content: flex-end;
  }
  .login_form {
    width: 100%;
    position: absolute;
    bottom: 0;
    padding: 0 20px;
    box-sizing: border-box;
  }
}
</style>